某水电站倾倒岩体基于UDEC变形评价方法研究  

Study on the evaluation method of toppling rock mass of a hydropower station based on UDEC

作　　者：王蓓[1] 吕城腾 纪南[1] WANG Bei;LV Chengteng;JI Nan(Hohai University,School of Earth Science and Engineering,Nanjing 210098,China)

机构地区：[1]河海大学地球科学与工程学院,江苏南京210098

出　　处：《河北工程大学学报（自然科学版）》2017年第3期60-64,共5页Journal of Hebei University of Engineering:Natural Science Edition

基　　金："十一五"国家科技支撑计划项(2008BA29B03-2);中国水利水电科学研究院开放基金资助项目(IWHRO2009011)

摘　　要：以澜沧江上游某水电站为例,对区域内的勘探平硐进行详细的编录、统计和分析,通过勘查和实地调查对库区倾倒变形体的位置、岩性及产状、结构面特征和规模进行详细分析,发现水电站库岸的倾倒变形严重。借助UDEC软件采用最大水平位移、变形面积、总位移这三种方案对倾倒变形进行评价,得出用总位移作为倾倒变形岩体变形的评价方法更为准确。Taking a hydropower station in the upper reaches of Lancang River as an example,thedetailed survey,statistics and analysis of the exploration Adit in the area are carried out,and thelocation,lithology,occurrence,structure and characteristics of the toppling deformation body areanalyzed in detail.It is found that the toppling deformation of the reservoir bank is serious.With thepassage of time,the dumping rock experience further deformation under the internal and external force.It seriously restricts the construction of hydropower station.The deformation of the correct methodsof evaluation is of great significance to the safety of the bank.With the help of UDEC software,themaximum horizontal displacement,the deformation area and the total displacement are used to evaluatethe toppling deformation.It is concluded that the method of evaluating the deformation of rock mass withtotal displacement is more accurate.

关 键 词：倾倒变形 影响因子 评价指标 UDEC 

分 类 号：TU47[建筑科学—结构工程]